test-lparse.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <sys/stat.h>
   4 #include <strings.h>
   5 #include <string.h>
   6 #include <errno.h>
   7 #include <signal.h>
   8 #include <unistd.h>
   9 #include "logutils.h"
  10 #include "lparse.h"
  11 #include "test_utils.h"
  12
  13 static struct lparse_test *lpt;
  14
  15 static struct lparse_test {
  16         char *path;
  17         uint lines, empty;
  18         int max_runtime;
  19         int byte_delta;
  20 } testfiles[] = {
  21         { "logs/no-lf-terminator.log", 1, 0, 1, -1 },
  22         { "logs/single-read.log", 1, 0, 1, 0 },
  23         { "logs/beta.log", 6114, 0, 2, 0 },
  24         { "logs/nuls.log", 20002, 8, 2, 0 },
  25         { NULL },
  26 };
  27
  28 void sighandler(int signum)
  29 {
  30         if (signum == SIGALRM) {
  31                 fprintf(stderr, "Failed to complete parsing %s in under %d seconds\n",
  32                                 lpt->path, lpt->max_runtime);
  33         }
  34         exit(1);
  35 }
  36
  37 static int lines, empty;
  38 static unsigned long long bytes = 0;
  39 static int check_line(char *str, uint len)
  40 {
  41         if (!len)
  42                 empty++;
  43         else
  44                 lines++;
  45         bytes += len + 1;
  46         return 0;
  47 }
  48
  49 #define print_expected(a, b, what) \
  50         printf("#    expected %llu " what ", got %llu. delta %d\n", \
  51                            (unsigned long long)a, (unsigned long long)b, (int)(a - b));
  52
  53
  54 static int use_alarm = 1;
  55
  56 static void test_one(int rev, struct lparse_test *t, struct stat *st)
  57 {
  58         lines = bytes = empty = 0;
  59
  60         if (use_alarm && t->max_runtime)
  61                 alarm(t->max_runtime);
  62         lparse_path_real(rev, t->path, st->st_size, check_line);
  63         if (use_alarm && t->max_runtime)
  64                 alarm(0);
  65
  66         if (lines == t->lines && t->empty == empty) {
  67                 if (bytes == st->st_size || st->st_size - bytes == t->byte_delta) {
  68                         t_pass("%s", t->path);
  69                         return;
  70                 }
  71         }
  72
  73         if (lines == t->lines)
  74                 printf("%spass%s %s\n", yellow, reset, t->path);
  75         else {
  76                 failed++;
  77                 printf("%sFAIL%s %s\n", red, reset, t->path);
  78         }
  79         if (lines != t->lines)
  80                 print_expected(t->lines, lines, "lines");
  81         if (empty != t->empty)
  82                 print_expected(t->empty, empty, "empty lines");
  83         if (st->st_size != bytes && st->st_size - bytes != t->byte_delta)
  84                 print_expected(st->st_size, bytes, "bytes");
  85 }
  86
  87 static void test_all(int reverse, const char *msg)
  88 {
  89         int i;
  90
  91         t_start("%s", msg);
  92         for (i = 0; testfiles[i].path; i++) {
  93                 struct stat st;
  94
  95                 lpt = &testfiles[i];
  96
  97                 if (stat(lpt->path, &st) < 0) {
  98                         fprintf(stderr, "Failed to stat '%s': %s\n", lpt->path, strerror(errno));
  99                         exit(1);
 100                 }
 101
 102                 test_one(reverse, lpt, &st);
 103         }
 104         t_end();
 105 }
 106
 107 static struct path_cmp_test {
 108         char *path;
 109         uint correct;
 110 } testpaths[] = {
 111         { "nagios-12-01-2002-00.log", 2002120100 },
 112         { "nagios-11-30-2006-01.log", 2006113001 },
 113         { "nagios-08-01-2009-00.log", 2009080100 },
 114         { "nagios-12-30-2147-99.log", 2147123099 },
 115         /* nagios.log is a special case, as is all logfiles without a dash */
 116         { "nagios.log", 1 << ((8 * (sizeof(int))) - 1) },
 117         { "foo.log", 0 },
 118         { NULL },
 119 };
 120 static void test_path_cmp(void)
 121 {
 122         int i;
 123
 124         t_start("testing path comparison");
 125         for (i = 0; testpaths[i].path; i++) {
 126                 struct path_cmp_test *t;
 127                 uint cmp;
 128
 129                 t = &testpaths[i];
 130                 cmp = path_cmp_number(t->path);
 131                 if (cmp == t->correct) {
 132                         t_pass("%s parses to %u", t->path, cmp);
 133                 } else {
 134                         t_fail("%s should be %u, got %u", t->path, t->correct, cmp);
 135                 }
 136         }
 137         t_end();
 138 }
 139
 140 int main(int argc, char **argv)
 141 {
 142         int i;
 143
 144         t_set_colors(0);
 145         t_verbose = 1;
 146
 147         signal(SIGALRM, sighandler);
 148
 149         for (i = 1; i < argc; i++) {
 150                 if (!strcmp(argv[i], "--no-alarm"))
 151                         use_alarm = 0;
 152         }
 153
 154         t_start("testing logfile parsing and sorting");
 155         test_all(0, "testing forward parsing");
 156         test_all(1, "testing reverse parsing");
 157         test_path_cmp();
 158         return t_end();
 159 }